Optimizing cell search in a mobile communication system supporting variable channel bandwidths

摘要

Methods and systems for optimizing cell searches in a mobile communication system supporting variable channel bandwidths are disclosed. A user device stores data identifying frequency bands, networks associated with the frequency bands, and various channel bandwidths supported by the networks. The user device is operable to dynamically update the stored data upon detecting a new network associated with one of the frequency bands.

主权项

1. A computer-implemented method comprising:
detecting a new search event for a user device operating in a mobile communications system supporting a plurality of channel bandwidths; identifying a frequency band in which to perform a search for a cell or a network at a present location of the user device; searching a local data store of the user device for data indicating one or more of the plurality of channel bandwidths for the present location of the user device; when the local data store includes the data indicating one or more of the plurality of channel bandwidths, performing the search using the indicated channel bandwidths; when the local data store does not include the data indicating one or more of the plurality of channel bandwidths, performing the search based on the present location of the user device using different channel bandwidths of the plurality of channel bandwidths until finding a cell at a particular channel bandwidth, and storing data indicating the particular channel bandwidth corresponding to the found cell in the local data store; and sending the data indicating the particular channel bandwidth corresponding to the found cell to a server to maintain a record in a centralized data store.